| Patent Number |
Title Of Patent |
Date Issued |
| 7336370 |
Optical nulling apparatus and method for testing an optical surface |
February 26, 2008 |
| An optical nulling apparatus for testing an optical surface includes an aspheric mirror having a reflecting surface for imaging light near or onto the optical surface under test, where the aspheric mirror is configured to reduce spherical aberration of the optical surface under test. |
| 5902994 |
Apparatus for calibrating a linear image sensor |
May 11, 1999 |
| Apparatus for calibrating a linear image sensor, includes a fluorescent light source, at least as long as the image sensor; a fixture for holding the light source parallel to the image sensor and displaced from the image sensor by a fraction of the length of the image sensor; and a light |
| 5835267 |
Radiometric calibration device and method |
November 10, 1998 |
| Apparatus and method for radiometrically calibrating an imaging sensor array using the sun as a calibration light source in an optical system of the type having an accessible real conjugate of the entrance pupil, includes a flux concentrator for concentrating the sunlight. A flux mod |
| 5573446 |
Abrasive air spray shaping of optical surfaces |
November 12, 1996 |
| A method of shaping surface on an optical element includes directing a stream of gas and particles at the surface at a velocity sufficient to controllably remove material from the surface to figure the surface to a desired optical profile. |
| 5552594 |
Focus detecting system using a beam splitter to form an image at nominal best focus, slightly in |
September 3, 1996 |
| A focus detecting system for detecting focus state of an image forming optical system relative to an object, includes a beam splitter assembly for forming at least three coplanar two-dimensional images of a scene, each image having a different focus setting. An area array image sensor |
| 5402238 |
Assembly suitable for determining a surface topology of a workpiece |
March 28, 1995 |
| An assembly preferably utilized in cooperation with a method for determining a surface topology of a workpiece. The assembly includes a projectile; means for coupling the projectile to a surface of a workpiece, and for imparting an initial momentum to the projectile with respect to t |
| 5361129 |
Method of assessing a surface figure of an optical element |
November 1, 1994 |
| A novel method for assessing a surface figure of an optical element. The method preferably comprises subjecting the optical element to a classical autocollimation testing procedure for ascertaining its surface figure relative to a predetermined ideal. The testing procedure is characteriz |
| 5309375 |
A method for determining a surface topology of a workpiece |
May 3, 1994 |
| A method for determining a surface topology of a workpiece preferably comprising a general symmetric asphere. The method includes the steps of coupling a projectile to a surface of a workpiece, and imparting a trajectory to the projectile with respect to the surface; sensing the traj |
| 5283629 |
Method for assessing a vertex radius of curvature |
February 1, 1994 |
| A method for determining a vertex radius of curvature for an optical surface. The method comprises subjecting the optical surface to a classical collimation testing procedure, so that the optical surface simulates a paraboloid; and, subjecting the optical surface to a vertex focusing |
| 5155544 |
Foucault method for testing an optical surface |
October 13, 1992 |
| The Foucault or knife-edge method may be employed for testing an optical surface defined by an imaging device, for example, a mirror surface, to ascertain its characteristics, for example, whether or not it is a source of optical aberrations. To this end, the traditional Foucault knife-e |
| 5150256 |
Optical reticle projector |
September 22, 1992 |
| An optical reticle projector which may be employed for astronomical data collection. The projector consists of a cylindrical housing having a radius from 0.5 to 4.0 inches; a source of radiation secured by the housing, the source of radiation capable of outputting a radiation beam al |
| 5146072 |
Method for determining large petal piston in a segmented imaging assembly |
September 8, 1992 |
| A method suitable for determining large petal piston in a segmented imaging assembly. The assembly preferably comprises a polychromatic source of radiation that can output a polychromatic radiation beam; and, a segmented imaging system including petals comprising a reference component an |
| 5120948 |
Method for simultaneously determining coarse and fine petal piston in a segmented imaging assemb |
June 9, 1992 |
| A method for simultaneously determining coarse and fine petal piston in a segmented imaging assembly. The assembly preferably comprises a source of radiation that outputs a radiation beam; and, a segmented imaging system comprising a reference component and a test component, which compon |
| 5118935 |
Composite imaging mask |
June 2, 1992 |
| A novel composite imaging mask suitable for employment in a method for simultaneously determining coarse and fine petal piston in a segmented imaging assembly. The mask comprises a transparent substrate comprising two spaced-apart apertures, which apertures are dedicated to coarse petal |
| 5117305 |
Modified retroreflector |
May 26, 1992 |
| A novel optical device, comprising, in one embodiment, a modified corner cube retroreflector. A conventional corner cube retroreflector may be modified so that a face plate comprises an enhanced reflectivity coating. The novel device functions such that at least five percent of the energ |
| 5107370 |
Astronomical data collection method employing a novel optical reticle projector |
April 21, 1992 |
| An astronomical data collection method employing a novel optical reticle projector. Prior art ground-based optical systems for astronomical data collection typically comprise a main telescope, and a guide telescope comprising an internal reticle. The guide telescope presumably corrects |
| 5083866 |
Method for monitoring alignment using a modified retroreflector |
January 28, 1992 |
| A method for monitoring an alignment of a workpiece with respect to a reference. The method includes a step of attaching to the workpiece a novel optical device comprising a modified corner cube retroreflector. The novel optical device can function such that a specified percentage of |
| 5069528 |
Remote optical alignment method |
December 3, 1991 |
| A novel method that is suitable for uniquely aligning remote first and second objects. In one aspect, the method comprises pre-alignment and alignment stages. The pre-alignment stage comprises generating first and second geometric configurations on the first and second objects, respe |
| 5054929 |
Optical alignment method using arbitrary geometric figures |
October 8, 1991 |
| A novel method that is suitable for uniquely aligning first and second objects. A pre-alignment stage of one aspect of the novel method comprises generating on a first object a first geometric configuration comprising dark and clear regions, and having at least one portion characterized |
| 5022753 |
Modified Foucault method for uniquely profiling an imaging device |
June 11, 1991 |
| A novel method for quantitatively assessing an imaging device in terms of the classical encircled energy test is disclosed in a contemporaneously filed Application. The present invention complements this capability, and discloses a method which can specify, precisely and uniquely, those |
| 5020905 |
Application of the Foucault knife-edge test to a segmented optic |
June 4, 1991 |
| The Foucault knife-edge test has been traditionally employed for testing a monolithic imaging device, for example, a mirror, to ascertain its characteristics, for example, whether or not it is a source of optical aberrations. The present invention, in contrast to the traditional Fouc |
| 5004337 |
Modified Foucault for testing an imaging device in terms of the encircled energy test |
April 2, 1991 |
| A novel method for quantitatively assessing an imaging device in terms of the classical encircled energy test. The method of the present invention provides this capability by a novel adaptation of the Foucault knife-edge test. In this way, the inherent advantages of the traditional quali |
| 4993831 |
Closed loop Foucault knife-edge test |
February 19, 1991 |
| The historical Foucault knife-edge test enables one to passively ascertain an optical imaging device's characteristics, for example, whether or not it is a source of optical aberrations. The historical Foucault knife-edge test corresponds to an open loop control system, since a control a |
| 4979819 |
Foucault knife-edge test for quantitatively determining a wavefront aberration over the entire s |
December 25, 1990 |
| The historical Foucault knife-edge test enables one to qualitatively ascertain an optical imaging device's characteristics, for example, whether or not it is a source of optical aberrations. The novel method of the present invention, in sharp contrast, complements the historical Fouc |
| 4969737 |
Expanded foucault knife-edge test for quantitatively testing an optical imaging device |
November 13, 1990 |
| The historical Foucault knife-edge test enables one to qualitatively ascertain an optical imaging device's characteristics, for example, whether or not it is a source of optical aberrations. The novel method of the present invention, in sharp contrast, complements the historical Fouc |
| 4161015 |
Luminaire using a multilayer interference mirror |
July 10, 1979 |
| A luminaire is provided which includes a reflector, a light source and a multilayer interference mirror. The light source is selected to emit monochromatic light. The multilayer interference mirror is disposed in a path of light emitted from the light source and is designed for angularly |
| 4161014 |
Luminaire having a configured interference mirror and reflector |
July 10, 1979 |
| A luminaire useful in illuminating a task area and having particular application for roadway lighting includes a monochromatic light source which is preferably a low pressure sodium lamp which can be an elongated tubular light source disposed within a housing defined by a reflector h |
| 4118761 |
Light condensing illuminator |
October 3, 1978 |
| A compact light condensing illumination system for the concentration of light at an area provides a light source capable of having a relatively shallow reflector with a relatively small aperture directing collimated light toward a planar reflector of rectangular configuration having a |
| 4088883 |
Luminaire for controlling locally unidirectional light |
May 9, 1978 |
| A luminaire having an aperture provides first and second zonal illumination areas. A reflector is disposed about a light source for reflecting a first portion of light emitted from the light source through a first zone of the aperture. A deviator is disposed within the reflector for perm |
| 4074126 |
Lighting panel |
February 14, 1978 |
| A lighting panel used to control locally unidirectional light is constructed from a plurality of light modifying elements that substantially control the distribution of light within a control range. Each element is disposed in the panel to receive the unidirectional light and has a s |
| 4071748 |
Lighting panel with controlled distribution of polarized light |
January 31, 1978 |
| A lighting panel used to control locally unidirectional light is constructed from a plurality of light modifying elements that substantially control the distribution of light within a control range. Each element is disposed in the panel to receive the unidirectional light and has a s |
| 4038542 |
Luminaire for controlling locally unidirectional light |
July 26, 1977 |
| A luminaire having an aperture provides first and second zonal illumination areas. A reflector is disposed about a light source for reflecting a first portion of light emitted from the light source through a first zone of the aperture. A deviator is disposed within the reflector for perm |
